How to Make It
Heat oven to 450° F. Toss the squash, maple syrup, 1 tablespoon of the oil, ½ teaspoon salt, and ¼ teaspoon pepper on a rimmed baking sheet and roast, turning once, until golden brown and tender, 9 to 12 minutes.
Heat the remaining 2 tablespoons of oil in a large skillet over medium-high heat. Season the pork with ¼ teaspoon each salt and pepper. Cook 2 of the pork chops until golden brown, 1 to 2 minutes per side. Cover, reduce heat to medium-low, and continue to cook until an instant-read thermometer inserted into the thickest part (avoiding the bone) registers 145° F, 30 seconds to 2 minutes more. Transfer to a plate, then repeat with the remaining 2 pork chops; reserve the skillet.
Add the shallot to the reserved skillet and cook, stirring frequently, until tender, 2 to 3 minutes. Whisk in the broth and mustard and cook, stirring occasionally, until thickened, 3 to 5 minutes.
Drizzle the pork with the sauce. Serve with the squash. Sprinkle with parsley.